In Spark on YARN mode, nodes without NodeManager deployed cannot start executor to execute tasks.

• A.True
• B.False

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What information does a Key Value format in the HBase data file HFiler contain?

• A.Timestamp
• B.KeyType
• C.Value
• D.Key

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What are the successful cases of Huawei Fusioninsight HD in the industry?

• A.digital government
• B.finance
• C.Smart Park
• D.smart transportation

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How many copies of HDFS Block in Fusionlnsight HD system are saved by default?

• A.Not sure
• B.1
• C.3
• D.2

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Which of the following nodes in HDFS is ZKFC process deployed on? (Multiple choice)

• A.Active NameNode
• B.DataNode
• C.Standby NameNode
• D.All of the above are wrong

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